#include <stdio.h>

int gval1;
int gval2;

int gvalu3 = 100;
int gvalu4 = 200;

int main()
{
    printf("gval1:%p\n",&gval1);
    printf("gval2:%p\n",&gval2);
    printf("gvalu3:%p\n",&gvalu3);
    printf("gvalu4:%p\n",&gvalu4);

    return 0;
}
